diff --git a/arch/arm64/boot/dts/renesas/r9a09g056.dtsi b/arch/arm64/boot/dts/renesas/r9a09g056.dtsi
index 50a3d42d192c..887110878906 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g056.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g056.dtsi
@@ -369,6 +369,39 @@
 			status = "disabled";
 		};
 
+		i3c: i3c@12400000 {
+			compatible = "renesas,r9a09g056-i3c", "renesas,r9a09g047-i3c";
+			reg = <0 0x12400000 0 0x10000>;
+			clocks = <&cpg CPG_MOD 0x91>, <&cpg CPG_MOD 0x92>, <&cpg CPG_MOD 0x90>;
+			clock-names = "pclk", "tclk", "pclkrw";
+			interrupts = <GIC_SPI 674 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 675 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 676 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 677 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 678 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 679 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 680 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 681 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 682 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 689 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 690 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 692 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 693 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 694 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 695 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 696 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "ierr", "terr", "abort", "resp",
+					  "cmd", "ibi", "rx", "tx", "rcv",
+					  "st", "sp", "tend", "nack",
+					  "al", "tmo", "wu";
+			resets = <&cpg 0x96>, <&cpg 0x97>;
+			reset-names = "presetn", "tresetn";
+			power-domains = <&cpg>;
+			#address-cells = <3>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		i2c0: i2c@14400400 {
 			compatible = "renesas,riic-r9a09g056", "renesas,riic-r9a09g057";
 			reg = <0 0x14400400 0 0x400>;